AM29F800BB-55EF Spansion Inc., AM29F800BB-55EF Datasheet - Page 8

• Manufacturer Part Number: AM29F800BB-55EF
• Description: IC, FLASH, 8MBIT, 55NS, TSOP-48
• Manufacturer: Spansion Inc.

Specifications of AM29F800BB-55EF

• Memory Type: Flash
• Memory Size: 8Mbit
• Memory Configuration: 1M X 8 / 512K X 16
• Access Time: 55ns
• Supply Voltage Range: 4.5V To 5.5V
• Memory Case Style: TSOP
• No. Of Pins: 48
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Legend:
L = logic 0, H = logic 1, X = Don’t Care. See Characteristics for voltage levels.
Notes:
1. Manufacturer and device codes may also be accessed via a command register write sequence. Refer to Table 7.
2. Refer to the section on Sector Protection.
Read Mode
The Am29F800 has two control functions which must
be satisfied in order to obtain data at the outputs. CE is
the power control and should be used for device selec-
tion. OE is the output control and should be used to
gate data to the output pins if a device is selected.
Address access time (t
stable addresses to valid output data. The chip enable
access time (t
and stable CE to valid data at the output pins.
The output enable access time is the delay from the
falling edge of OE to valid data at the output
8
Autoselect, AMD Manuf. Code (Note 1)
Autoselect Device Code (Note 1)
Read
Standby
Output Disable
Write
Verify Sector Protect (Note 2)
Temporary Sector Unprotect
Hardware Reset
Autoselect, AMD Manuf. Code
(Note 1)
Autoselect Device Code (Note 1)
Read
Standby
Output Disable
Write
Verify
Sector Protect (Note 2)
Temporary
Sector Unprotect
Hardware Reset
Operation
Operation
CE
) is the delay from stable addresses
ACC
) is equal to the delay from
Table 1. Am29F800 User Bus Operations (BYTE = V
Table 2. Am29F800 User Bus Operations (BYTE = V
CE
H
L
L
L
L
L
L
X
X
CE
H
X
X
L
L
L
L
L
L
OE
X
H
H
X
X
L
L
L
L
P R E L I M I N A R Y
Am29F800T/Am29F800B
OE
H
H
L
L
L
X
L
X
X
WE
H
H
H
H
X
X
L
X
X
WE
H
H
X
X
H
H
X
X
L
A0
A0
A0
H
X
X
X
X
L
L
pins (assuming the addresses have been stable for at
least t
Standby Mode
There are two ways to implement the standby mode on
the Am29F800 device, both using the CE pin.
A CMOS standby mode is achieved with the CE input
held at V
typically reduced to less than 5 A. A TTL standby
mode is achieved with the CE pin held at V
this condition the current is typically reduced to 1 mA.
A0
A0
A0
H
X
X
X
X
A1
L
L
A1
A1
H
L
L
X
X
X
X
ACC
CC
A1
A1
A1
–t
A6
A6
A6
H
L
L
X
X
X
X
X
X
X
X
L
L
L
OE
0.3V. Under this condition the current is
time).
V
V
V
A9
A9
A9
A6
A6
A6
X
X
X
X
X
X
X
X
L
L
L
ID
ID
ID
DQ0–DQ7 DQ8–DQ15 RESET
IH
IL
HIGH Z
HIGH Z
HIGH Z
V
V
V
A9
A9
A9
Code
Code
D
Code
X
X
X
X
)
)
D
ID
ID
ID
OUT
X
IN
DQ0–DQ15
HIGH Z
HIGH Z
HIGH Z
Code
Code
D
Code
D
OUT
X
HIGH Z
HIGH Z
HIGH Z
HIGH Z
HIGH Z
HIGH Z
HIGH Z
HIGH Z
HIGH Z
IN
IH
RESET
. Under
8/18/97
V
H
H
H
H
H
H
H
L
V
ID
H
H
H
H
H
H
H
L
ID